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Dobashi A, Hara Y, Furuhashi H, Matsui H, Tada N, Ito M, Futakuchi T, Kobayashi M, Ono S, Aizawa D, Yamauchi T, Suka M, Sumiyama K. Diagnostic Performance of a Novel Ultra-Thin Endoscopy under Narrow-Band Imaging for Superficial Squamous Cell Carcinoma of the Pharynx and Esophagus. Cancers (Basel) 2024; 16:529. [PMID: 38339279 PMCID: PMC10854735 DOI: 10.3390/cancers16030529] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Revised: 01/24/2024] [Accepted: 01/24/2024] [Indexed: 02/12/2024] Open
Abstract
This study aimed to evaluate the diagnostic utility of the ultra-thin endoscope (UTE) for superficial squamous cell carcinoma (SSCC) compared to magnifying endoscopy (ME) under narrow-band imaging. Participants underwent endoscopic examination, and images of pharyngeal and esophageal SCCs, as along with suspicious SSCC lesions, were collected using UTE and ME on the same day. Three image catalogs (UTE, ME-1, and ME-2) were created and reviewed by three expert endoscopists. ME-1 and ME-2 contained the same endoscopic images. The primary endpoint was the intra-observer agreement for diagnosing SCC. Eighty-six lesions (SCC = thirty-nine, non-SCC = forty-seven) in 43 participants were identified. The kappa values for the intra-observer agreement between UTE and ME-1 vs. the control (ME-1 vs. ME-2) were 0.74 vs. 0.84, 0.63 vs. 0.76, and 0.79 vs. 0.88, respectively. The accuracies for diagnosing SCC by UTE and ME-1 were 87.2% vs. 86.0%, 78.0% vs. 73,2%, and 75.6 vs. 82.6%, respectively, with no significant differences (p > 0.05). The rates of lesions that were diagnosed with confidence by UTE and ME-1 were 30.2% vs. 27.9%, 55.8% vs. 62.8%, and 58.1% vs. 55.8%, respectively. UTE demonstrates substantial diagnostic performance for SSCC in the pharynx and esophagus.
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Affiliation(s)
- Akira Dobashi
- Department of Endoscopy, The Jikei University School of Medicine, Tokyo 105-8461, Japan (T.F.); (K.S.)
| | - Yuko Hara
- Department of Endoscopy, The Jikei University School of Medicine, Tokyo 105-8461, Japan (T.F.); (K.S.)
| | - Hiroto Furuhashi
- Department of Endoscopy, The Jikei University School of Medicine, Tokyo 105-8461, Japan (T.F.); (K.S.)
| | - Hiroaki Matsui
- Department of Endoscopy, The Jikei University School of Medicine, Tokyo 105-8461, Japan (T.F.); (K.S.)
| | - Naoya Tada
- Department of Endoscopy, The Jikei University School of Medicine, Tokyo 105-8461, Japan (T.F.); (K.S.)
| | - Mamoru Ito
- Department of Endoscopy, The Jikei University School of Medicine, Tokyo 105-8461, Japan (T.F.); (K.S.)
| | - Toshiki Futakuchi
- Department of Endoscopy, The Jikei University School of Medicine, Tokyo 105-8461, Japan (T.F.); (K.S.)
| | - Masakuni Kobayashi
- Department of Endoscopy, The Jikei University School of Medicine, Tokyo 105-8461, Japan (T.F.); (K.S.)
| | - Shingo Ono
- Department of Endoscopy, The Jikei University School of Medicine, Tokyo 105-8461, Japan (T.F.); (K.S.)
| | - Daisuke Aizawa
- Department of Pathology, The Jikei University School of Medicine, Tokyo 105-8461, Japan
| | - Takashi Yamauchi
- Department of Public Health and Environmental Medicine, The Jikei University School of Medicine, Tokyo 105-8461, Japan; (T.Y.); (M.S.)
| | - Machi Suka
- Department of Public Health and Environmental Medicine, The Jikei University School of Medicine, Tokyo 105-8461, Japan; (T.Y.); (M.S.)
| | - Kazuki Sumiyama
- Department of Endoscopy, The Jikei University School of Medicine, Tokyo 105-8461, Japan (T.F.); (K.S.)
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Pan H, Zhang S, Lu Y, Han Z, Li X, Li Z, Cui Y, Han M, Li R. Ultrathin endoscope equipped with ultrasonic miniprobe for upper GI US in a porcine model. Gastrointest Endosc 2024; 99:108-115.e1. [PMID: 37739237 DOI: 10.1016/j.gie.2023.09.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Revised: 08/08/2023] [Accepted: 09/14/2023] [Indexed: 09/24/2023]
Abstract
BACKGROUND AND AIMS Ultrathin EGD (UT-EGD) is an ideal tool for unsedated upper GI examination and pediatric gastroenterology but is rarely competent for EUS miniprobe (EUS-MP). We developed a UT-EGD US method (UT-EUS) and verified its clinical application value through animal experiments. METHODS Five Bama miniature pigs were selected. Using an acoustic medium, we performed US on the duodenum, stomach, and esophagus, respectively, with conventional 20-MHz EUS miniprobe (EUS-MP-20), 20-MHz UT-EUS (UT-EUS-20), and 30-MHz UT-EUS (UT-EUS-30). The times to acquire 5 consecutive stable US images, number of identifiable wall layers, and quality and penetration depth of the images were recorded. RESULTS No significant differences were found in the time required to obtain images between EUS-MP-20 and UT-EUS-20 at each site (P > .05). UT-EUS-30 showed more wall levels than UT-EUS-20 (P < .05). No significant differences were noted between EUS-MP-20 and UT-EUS-20 in imaging quality and penetration depth (P > .05). CONCLUSIONS The UT-EUS is easy to use with a satisfactory image quality and has potential clinical application value.
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Affiliation(s)
- Hanchao Pan
- Department of Gastroenterology, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Siyue Zhang
- Department of Gastroenterology, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Yongda Lu
- Department of Gastroenterology, The First Affiliated Hospital of Soochow University, Suzhou, China
| | - Zhile Han
- The Medical Ultrasound Department, Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences, Suzhou, China
| | - Xinze Li
- The Medical Ultrasound Department, Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences, Suzhou, China
| | - Zhangjian Li
- The Medical Ultrasound Department, Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences, Suzhou, China
| | - Yaoyao Cui
- The Medical Ultrasound Department, Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences, Suzhou, China
| | - Mei Han
- Department of Health Management Center, First Affiliated Hospital of Soochow University, Suzhou, China
| | - Rui Li
- Department of Gastroenterology, The First Affiliated Hospital of Soochow University, Suzhou, China
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